<yby-steps
  [steps]="steps"
  [stepsWidth]="'600px'"
  [current]="current"
  [startIndex]="startIndex"
  (stepChange)="stepChange($event)"
>
</yby-steps>
<div class="action-list">
    <button nz-button [disabled]="preDisabled" (click)="current=current-1">上一步</button>
    <button nz-button nzType="primary" [disabled]="nextDisabled" (click)="current=current+1">下一步</button>
</div>
<ng-template #title2><span style="color: red;">title2</span></ng-template>